by LilGungaJr·Published 08/15/2026, 06:21:56 AM
Sudoku
Each row, column, and region must contain the digits 1-9 once each.
Anti-Knight
Cells separated by a knight's move in chess cannot contain the same digit.
German Whisper Lines
Adjacent cells along a German Whisper Line must differ by at least 5.
Dutch Whisper Lines
Adjacent cells along a Dutch Whisper Line must differ by at least 4.
Region Sum Lines
Segments in each region along a Region Sum Line must sum to the same total. Different lines may have different totals.
Renban Lines
Cells along a Renban Line form a set of consecutive digits in any order, without repeats.
Odd Lots
Digits on an Odd Lot cell indicate how many of the cells on the attached line contain odd digits (including itself).
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